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    <title>Document</title>
    <link rel="stylesheet" href="../css/public.css">
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<body>
    <!-- strokeText  画布上绘制文本（没有填色）。文本的默认颜色是黑色 -->

    <canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;"></canvas>

    <script>
        var c = document.getElementById("myCanvas");
        var ctx = c.getContext("2d");
        ctx.font = "20px Georgia";
        ctx.strokeText("Hello World!", 10, 50);
        ctx.font = "30px Verdana";
        // 创建渐变
        var gradient = ctx.createLinearGradient(0, 0, c.width, 0);
        gradient.addColorStop("0", "magenta");
        gradient.addColorStop("0.5", "blue");
        gradient.addColorStop("1.0", "red");
        // 用渐变填色
        ctx.strokeStyle = gradient;
        ctx.strokeText("Hello World!", 10, 90);
    </script>
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